Prospective, Randomized, Parallel Clinical Controlled Study of Early Diet Opening on Postoperative Gastrointestinal Hemorrhage in Patients With Colonic Polyps

Inclusion Criteria: * Age 18-75, no gender restrictions, * Patients with colonic polyps identified by colonoscopy and requiring endoscopic treatment, * Polyp size 0.5cm-2cm, * Patients agreed to enroll and signed a written informed consent, * Adherence is good and agrees to be treated and evaluated as required by the study protocol. Exclusion Criteria: * Patients with contraindications to endoscopic treatment of colonic polyps, including platelets ≤50×109/L, prothrombin time prolonged by 4 seconds or more, and INR≥2.0, * Patients with severe heart, brain, lung, blood system diseases, uremia, connective tissue disease, * Patients requiring treatment with NSAIDs, aspirin, glucocorticoids, or clopidogrel within the first 7 days of the study, * During the course of the study, due to other concomitant/complications, patients who need to use drugs that affect the efficacy of the trial, including various anticoagulants, antiplatelet drugs and hemostatic drugs, * Alcoholics, drug addicts or those with uncontrollable neuropsychiatric diseases and others who are not suitable for participating in the trial, * Pregnant, breastfeeding women, or women in childbearing age who wish to become pregnant, * Patients with malignant tumor of digestive system, * Other circumstances in which the investigator believes that the patient should not participate in this trial